Home / 687,913.37-949,408.01-415,983.24

Finding the Fourth Proportional to 687,913.37, 949,408.01 and 415,983.24

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Solution

The fourth proportional to 687,913.37, 949,408.01 and 415,983.24 is: 574,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,913.37 : 949,408.01 = 415,983.24 : x
  2. Step 2: Convert to fraction form
    687,913.37/949,408.01 = 415,983.24/x
  3. Step 3: Cross multiply
    687,913.37x = 949,408.01 × 415,983.24
  4. Step 4: Simplify right side
    687,913.37x = 394,937,820,081.75
  5. Step 5: Solve for x
    x = 394,937,820,081.75/687,913.37
  6. Step 6: Final answer
    x = 574,109.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.